11) Mark scheme is wrong. You are correct. 12) Total resistance in circuit is the 6 ohm on the left plus (in series with) the two 6 ohms in parallel on the right. Try again to find the total resistance then use V=IR to find I
11) Mark scheme is wrong. You are correct. 12) Total resistance in circuit is the 6 ohm on the left plus (in series with) the two 6 ohms in parallel on the right. Try again to find the total resistance then use V=IR to find I
Ohhh good news for 11 then!
I also got 6/9 for the current in 12 (like in the markscheme) but now I'm having some trouble working out the V. I'm using V=IR but I'm not sure which resitance to use.
I also got 6/9 for the current in 12 (like in the markscheme) but now I'm having some trouble working out the V. I'm using V=IR but I'm not sure which resitance to use.
Use the current you just found. That goes through the 6 ohm on the left. It's the pd across that they want.